Davis: RANUNCULI OF NORTH AMERICA. 503 
ers small, yellow, one to several on scape-like stems; sepals 
often 5, deciduous; petals 5-12, pit at base small; stamens 
many: akenes compressed, somewhat swollen, thin-walled, 
striate with simple or branched nerves: head of fruit oblong or 
oval. Several species, but the following only is found in 
America.—Section Hatopes, Gray, Proc. Am. Acad. 21: 
366, under Ranunculus. 
0. Cymbalaria PRANTL, in Engl. & Prantl, Nat. Pfl. Fam. 
aA bt..2, 03. T6Gt. 
?Ranunculus saluginosus PALL. Reise. 3: 263. 1776. 
FR. Cymbalaria Pursu, Fl. 2: 392. 1814. 
Le. halophilus ScutecuT. Animad. Ranunc. 1: 23. ¢. 4. 
Wot. | FOLO: 
fF. tridentatus H.B.K. Nov. Gen. & Sp. Pl. 5: 42. 1821. 
fF. Cymbalaria var. alfinus Hook. Fl. t: 11. 1833. 
Cyrtorhyncha Cymbalaria Britton, Mem. Torr. Club, 
5: 161. 1894. 
Leaves orbicular to ovate, cordate or truncate at base, one 
inch long or even much less: scapes short; receptacle elongat- 
ing in fruit: akenes minutely sharp-pointed. Summer. Shady 
shores and moist saline or salt grounds. Arctic sea coasts to 
New Jersey, west to Minnesota, thence south and west. Also 
Mexico, South America, Greenland, Asia. 
INDEX TO NAMES OF RANUNCULUS. 
(References to other genera are indicated by their initials. ) 
abortivus Hook., 35. affints Torr., 49. 
abortivus Linn., 32. affints var. cardiophyllus, 42. 
abortivus var. australis, 32. affinis var. lasiocarpus, 42. 
abortivus var. encyclus, 32. affints var.*letocarpus, 42. 
abortivus var. grandifiorus, 32. affints var. micropetalus, 42. 
abortivus var. Harveyt, 32. affints var. validus, 42. 
abortivus var. micranthus, 10. alceus, 6. 
aconttifolius, 73. alismefolius Benth., 79. 
acrts Hook., 29. ; alismefolius Geyer, 81. 
acrts Linn., 40. alismefolius var. alismellus, 82. 
acris var. Deppiz, 30. alismefolius var. caltheflorus, 
acriformis, 29. Si. 
adoneus, 58. alismefolius var. montanus, 82. 
affines R. Br., 42. alismellus, 82. 
